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...bands such as The Who, The Yadbirds, the Grateful dead and others began to rule the world. Other genres of rock began to emerge including the progressive rock-experimental with other instruments like guitar, bass and drums which were popularized by pink Floyd, folk rock- tradition rock songs with a blues undertone popularized by Janis Joplin and Bob Dylan, and heavy metal-which is a thick, heavy, and highly improved type of Rock popularized by Black Sabbath. The world started... ? Technology Technology In ancient time, rock music was not in existence. Most historians trace the beginning of rockback in 1958. A new type of music was later invented called Rock and Roll. The appearance of this music altered...